ethanshoemaker
Member
Hi All,
I am very new to microcontrollers and I am attempting to use ADC to read voltage of AA battery and then eventually a piezo element. I am using teensy 3.6 and understand there are 25 different pins that can take analog input. My question is where to connect my negative lead on the teensy. I see regular GND pins, AGND, and AREF but I am not sure which the negative end of the battery should be connected to. Any help would be appreciated.
Thanks,
Ethan
I am very new to microcontrollers and I am attempting to use ADC to read voltage of AA battery and then eventually a piezo element. I am using teensy 3.6 and understand there are 25 different pins that can take analog input. My question is where to connect my negative lead on the teensy. I see regular GND pins, AGND, and AREF but I am not sure which the negative end of the battery should be connected to. Any help would be appreciated.
Thanks,
Ethan